Last night, I brushed up on my Bosch D-Jetronic knowledge while at work. This morning, I removed the fuel pump relay bypass wire and when I turned the ignition switch to (on) the pump ran for a couple seconds then stopped (as described in my reference materials). I then moved the throttle off of idle and heard the injectors clicking, as they should. I was thinking that the throttle position sensor might not be working properly and this is the test described in the service manual. After that, I started the engine and noticed that the fuel pressure was now at 36 psi. I adjusted it back to 29 and then started wiggling wires gently. When I lifted up on the coolant temperature sensor wires, the engine immediately died!
I turned the key off and went to the other garage to grab my tools. After removing about 3 inches of plastic tubing from the wires, it was very clear where the fault was. The signal wire had a break in it, and it was close enough to the end that I didn't have to splice another wire to it.
After the repair I scrambled to find the car's registration sticker, checked the oil and drove with Kyle to have lunch at Portillos.
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| My Winter project will be to rewire the fuel rail. |
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| Safely back home, under its own power. |
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| The offending wire. |
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